If you have started leaning on an AI assistant to pull comps, check listing statuses, or build a CMA faster, you are not alone, and you may already be closer to a bylaw violation than you realize.
Solid Earth, a security vendor that several MLSs use to monitor unauthorized data access, is currently fielding up to 1,200 attempts a day from AI bots trying to scrape MLS listing data, according to CEO Eric Steggman. Six months ago that number was under 10. "That's on a low day," Steggman told HousingWire on October 13, 2026. "It has exploded."
Why This Matters to Your MLS Access
Most MLSs do not have a formal AI use policy yet, and the few that do are still catching up to what agents are actually doing. That gap has not stopped agents from building AI workflows around their MLS login anyway, often without fully understanding what they are exposing.
William Zhang, an Austin, Texas agent who runs a networking group called Real Estate AI Society, told HousingWire he started by letting Claude open a browser and use his MLS account the way he would himself, pulling data, running searches, building reports. His local MLS caught it and sent him a warning. The risk is not abstract: once an AI tool has your MLS credentials, it can do anything your login permits, which can include lockbox access, seller information, and other agents' data, not just public listing details.
Colorado agent Brendan Bartic, founder of Listing Beast, has taken it a step further. He has been selling access, for 47 dollars, to a Claude-based browser extension that logs into his MLS account and builds a CMA automatically. HousingWire reported that this appears to run directly against the terms of service set by Cotality, the data provider behind REColorado, which bars using any robot, spider, web crawler, or other automated tool to access, monitor, or data-mine the service. Bartic's position is that nothing new is being granted, the tool just rides along with a login he is already cleared to use. His MLS may not see it that way, and neither might yours.
What To Do Before You Plug an AI Tool Into Your MLS
Before you connect any AI assistant, extension, or bot to your MLS account, check your own MLS's bylaws and terms of use for language about automated access, data mining, or third party tools. If it is not explicitly permitted, assume it is not allowed, even if the tool is marketed as a simple productivity extension. Ask your MLS directly whether they have an approved path for AI tools, and if they do not yet, ask what they recommend in the meantime. A warning now is a lot cheaper than losing your MLS access during a transaction.
It is also worth separating what the tool touches from what it claims to touch. A browser extension that rides on your authenticated session does not just see the listing you are looking at, it can potentially see everything your login can reach, including information tied to other agents' clients. That is the part MLS compliance departments tend to care about most, and it is the part most sales pitches gloss over.
This is moving fast enough that the rules will likely keep changing under you. MLS leaders at NorthStar MLS and California Regional MLS have both said publicly that the industry needs a more granular way to track who is using MLS data, for what purpose, and under what terms, rather than relying on the broad rules written before AI assistants existed. Until that infrastructure catches up, the safest move is the boring one: ask your MLS what is allowed before you find out the hard way.
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